Compressor with variable pressure on the leg of arm of the support of a windscreen wiper

ABSTRACT

The compressor with variable pressure is equipped whit a head, fallowed by two arms equipped with a hole in there extremity, forming a 90 degree angle with the head of the compressor their giving them the possibilities to fallow each side of the head of supports of the windscreen wiper. So allowing by mean of one nut to anchor it after the head of support of the windscreen wiper and in this way to allow the compressor to fallow the same axis. Of a leg covering in is middle the leg of arm of support of the windscreen wiper, allowing the insertion of a nut with fin in a threaded hole situated at the end of the leg of the compressor. By turning the nut with fin downward, this gesture allows to pressurize the blade of the windscreen wiper, a pressure which obliges it to stick on the windscreen, allowing the blade to clean the windscreen with more efficiency. It eliminated the uprising of the blade induce by the strength of the wind or the speed of the car.

[0001] This invention is connected to a windscreen wiper of a motorcar. By preserving on the windscreen wiper a constant and continuous pressure, their allowing so to stick on the windscreen. The head of the compressor (1) is anchored after the head of the leg of the arm of supports of the windscreen wiper (2) and this one is coupled with the system of the windscreen wiper, putting obstacle to any loss of pressure on the windscreen. The compressor is a removable device allowing to apply a variable pressure to a leg of arm of support of the windscreen wiper (2) to increase so at the need, the pressure of the windscreen wiper against the windscreen of a car.

[0002] The various elements of the device are, the head (1) which anchors on the head of the leg of arm of supports of the windscreen wiper (2) being anchored on the shaft of the engine (9) of the system of the windscreen wiper, two arms (8) pierce in their extremity which comes down on each side from the head of the leg of arm of the windscreen wiper, so allowing to couple by means of a nut (7), the device on the head of leg of arm of support of the windscreen wiper (2), the leg of the compressor, (3) which follow horizontally the leg of arm of the windscreen wiper. The extremity of the leg of the compressor (3), is equipped whit a threaded hole (5) allowing to introduce a nut whit fin (6) which is going to lean on the leg of arm of support of the windscreen wiper (4), so allowing to increase or decrease, in a changeable way the pressure on the windscreen wiper by turning manually the nut with fin.

Preliminary Researches

[0003] Here are the examples of patents which my preliminary researches made me discover. Each of these patents serve for maintaining a blade of windscreen wiper on the windscreen but none of them works like the compressor of variable pressure, by applying A pressure to the blade of the windscreen wiper in a variable and manual manner, at the need of the driver, as the compressor can make it. Once the adequate pressure is applied to the leg of arm of the windscreen wiper the exercised pressure allow it no movement of takeoff of the windscreen. Inventor Patent No: Date of patent Kota Sridhar 6,301,742 B1 October 16^(th), 2001 Raynaud 6,282,743 B1 September 4^(th), 2001 Shuen 6,195,832 B1 March 6^(th), 2001 Blachetta and al. 5,771,527 June 30^(th), 1998 Battlogg 5,613,267 March 25^(th), 1997 Harmon and al. 5,421,055 June 6^(th), 1995 Jean koch 5,320,333 June 14^(th), 1994 Honda and al. 4,993,102 February 19^(th), 1991 Steward Sr. 5,008,971 April 23th, 1991 Fukumoto and al. 5,056,182 October 15^(th), 1991 Buchannan and al. 5,062,175 November 5^(th), 1991 Okuda and al. 4,718,139 January 12^(th), 1988 Watanabe 4,698,872 October 13^(th), 1987 Canada Jean Koch CA 2122993 February 18^(th), 1994 Marcello Scorsiroli CA 2022734 August 2th, 1990 Raymond Bacconnier CA 2065072 August 23th, 1990 Marcello Scorsiroli CA 1287454 May 7^(th), 1987

BACKGROUND OF THE INVENTION

[0004] The arm of the windscreen wiper of motorcar contains some mechanics integrated into the arms of supports of windscreen wiper to maintain a certain pressure on the blade made of rubber against the windscreen. Usually the integrated mechanic which is stretched in between a base fixed to a fluted tree of training and swiveling arm of windscreen wiper, do not kick away enough space to release a moment of rather long arm to create so a self-important pressure on the blade, by contribution in the force exercised by integrated mechanic. The integrated mechanic must be extremely powerful by contribution in the force of arm and the pivot to create a sufficient mattering moment to generate a good pressure on the blade so that in his turn, sweeps it of the windscreen wiper produces an action of wiping satisfying on the windscreen. What usually arrives at high speed of the vehicle or when the vehicle faces strong winds, the effect of uprising led by the wind on the leg of arm of supports of the blade of the windscreen wiper counterbalance the force exercised by the integrated mechanics and so reduce the action of wiping of the blade. It does not exist in away or means known allowing to keep a steady and constant pressure according to the need of moment, (speed of the motorcar, the strength of the wind) to eliminate the uprising led by the wind. The variable compressor for leg of arm of support of the windscreen wiper comes to correct the situation.

SUMMARY

[0005] This invention his related to the windscreen wiper of motorcar. By keeping on the windscreen wiper a constant and continuous pressure, there fore forcing the blade to stick on the windscreen. Anchored after the head of the leg of arm of support of the windscreen wiper, this last one being coupled with the shaft of the engine of the system of windscreen wiper, so allow the compressor to fallow the same axis as the arm of support of the windscreen wiper. The nut with fin situated at the end of the leg of the compressor is pressed on the leg of the arm of the windscreen wiper, so obliging the windscreen wiper to stick on the windscreen, no matter the force of the wind, or the speed of the car.

BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Drawing A and B

[0007] Fig. A is a top view of the compressor with variable pressure.

[0008] Fig. B is a side view of the assembly of Fig. A

[0009] Drawing 1 And 2

[0010]FIG. 1 is a top view of the compressor with variable pressure mounted on the leg of arm of the support of a windscreen wiper.

[0011]FIG. 2 is a side view of the assembly of FIG. 1

[0012]FIGS. 1A and 2A

[0013]FIG. 1A is a top view of the compressor with variable pressure mounted on the leg of arm of the support of a windscreen wiper but with is variants.

[0014]FIG. 2A is a side view of the assembly of FIG. 2A

DETAIL DESCRIPTION OF THE INVENTION

[0015] Drawing 1 and 2

[0016] The compressor of variable pressure is removable, it is constituted by the head of the compressor (1) which anchors with the head of arm of the supports of the windscreen wiper (2) witch is anchored on the shaft of the motor (9) of the system of the windscreen wiper. The arms of the compressor (8) slips on each side of the head of the leg of the support of the windscreen wiper (2), so allowing the insertion of its anchoring screw (7) witch supports the compressor on the head of leg of arm of the support of the windscreen wiper (2). Thus allowing the compressor to follow the same evolution of the arm of the windscreen wiper (9). The leg of the compressor (3) fallows at the same time the arm of the support of the windscreen wiper (4). The extremity of the leg of the compressor (3), his drill with a threaded hole (5) allowing the insertion of a nut with fin (6) in the leg (3) and the nut with fin (6) to compress manually and at the need, in the direction of the windscreen the arm of support (4) witch has the effect of maintening the blade of the windscreen wiper in the wished position, and to adjust the necessary pressure for a good functioning. The compressor being coupled on the head of arm of supports of the windscreen wiper (2) witch his immobilized being couple after the shaft of the system of the windscreen wiper (9) the pressure can only be made toward the windscreen. It is possible to bring variants to the compressor of variable pressure.

[0017] Drawing 1A and 1B

[0018] The system of the windscreen wiper of a motorcar allows to raise the blade of the windscreen wiper off the windscreen to allow a more efficiency cleaning. Between the head of the arm of the windscreen wiper (2) which is anchored on the shaft of the engine of the system of the windscreen wiper (9) and the arm of the support of the windscreen wiper (4) is a hinge (10) allowing to lift this last one. You allow the same movement to the compressor by putting a hinge (11) on is leg, localized in front of the hinge (10) of the arm of support of the windscreen wiper (4), between both arms of the compressor (8) and its leg (12) The leg of the compressor (12) is retained in place by adding a slide channel (13) on the head of the compressor (1) and a slide channel (13) on the leg of the compressor (3). By sliding a clasp (12) reaching both slides channels (13), the leg of the compressor (3) is coupled by the clasp (12) on the arm of the support of the windscreen wiper (4) in a parallel way. This device allows to pass on by mean of the nut with fin (6) the necessary pressure and to maintain the blade of the windscreen wiper on the windscreen. The clasp (12) is retained in place by the pressure apply by the nut with fin (6) because a fraction of the pressure apply on the arm of the support of the windscreen wiper (4) is transferred upward to the clasp (12) of the leg of the compressor (30. The extremity of the clasp (12) is equipped with a handle (14) to facilitate its retreat when necessary for cleaning purpose of the windscreen.

[0019] The compressor with variable pressure can be fabricated by various material. From a plastic being able to resisted to the change in temperature and having the necessary solidity to undergo the pressure exercise on the leg (3) of the compressor, via the nut with fin without suffering from any distortion. So by mean of various metals, iron, aluminum and of quite others materials. It is also possible to use various dimensions and various thicknesses, some others sorts of anchoring devices for the manufacturing process, as long as these last ones resist to the same pressure without undergoing any deformation. 

1- I claim that the compressor whit variable pressure of leg of arm of the supports of windscreen wiper increase in a variable way, the pressure exerted by the windscreen wiper on the windscreen of a car and maintains the ideal pressure for the cleaning of the windscreen by keeping constant pressure on the windscreen wiper. 2- I claim that the pressure his applies manually by means of a screw whit fin witch is inserted in a threaded hole, situated at the end of the leg of the compressor. 3- I claim That the compressor is retained on the leg of the arm of the support of the windscreen wiper by mean of a anchoring screw, witch stabilizes and assure the compressor to follow the axis of the head of the leg of arm of the windscreen wiper. 4- I claim that the ideal pressure is found by turning manually the screw whit fin according to the need of the driver of the motorcar, depending of the speed of the motorcar, or the weather conditions. 